Exterior facing surface configuration of a trunk for an automobile



FIG. 1 is a front view of an exterior facing surface configuration of a trunk for an automobile according to my novel design;

FIG. 2 is a top view of an exterior facing surface configuration of a trunk for an automobile according to my novel design;

FIG. 3 is a side view from the left of an exterior facing surface configuration of a trunk for an automobile according to my novel design, which is a mirror image of the side view from the right; and,

FIG. 4 is a perspective view from the front right of an exterior facing surface configuration of a trunk for an automobile according to my novel design.

The broken line showing depicts environment and is not part of the claimed design. 

The ornamental design for an exterior facing surface configuration of a trunk for an automobile, as shown and described. 